Water enters the pump of a steam power plant as saturated liquid at 20 kPa at a rate of 45 kg/s and exits at 6 MPa. Neglecting the changes in kinetic and potential energies and assuming the process to be reversible, determine the power input to the pump.

Q: A sample of blood plasma occupies 0.599 L at 0°C and 1.03 bar, and is compressed isothermally by…

A: Given  Vi=0.559 L external pressure (Pext)=95.2 bar Compression =0.57% Required work done

Q: There are 60,000 kcal/hr of heat extracted from 5.67 kg/s of carbon monoxide gas while the…

A:

Q: Find the total change in entropy if 2kg2kg of ice at 0.00∘C0.00∘C is mixed with 25.0kg25.0kg of…

A: Ice of mass m1=2kg at temperature T1=0 C=273 K is mixed with water of mass m2=25kg at temperature…

Q: An ideal diesel engine has a compression ratio of 20 and uses air as the working fluid. The state of…

A: In this case, initially calculate the cut-off ratio by using ideal gas relations at states 2 and 3.…

Q: In an isothermal reversible process, the internal energy is equal to zero A Yes B) No c) It depends…

A: Given: In an isothermal reversible process, the internal energy is equal to zero

Q: A Carnot engine, whose efficiency is 40%, takes in heat from a source maintained at a temperature of…

A:

Q: P Isotherm V. 2V,

A:

Q: At steady state, a refrigeration cycle operating between hot and cold reservoirs at 300 K and 275 K,…

A:

Q: As shown in the figure, a chamber with a moveable piston and containing a monatomic ideal gas in an…

A:

Q: ice at 0.0 °C. How much energy (in Joules) must be supplied to the machine to achieve this task? So.…

A:

Q: measured as pl = 1.4bar, density = 2.5kg/m3 , ul 920KJ/kg while at exit the properties are p2 = 5…

A:

Q: As shown in the figure, a chamber with a moveable piston and containing a monatomic ideal gas in an…

A:

Q: A mass of gas is compressed in a quasi-static process from 80 Kpa, 0.1 m^3 to 0.4 Mpa,0.03 m^3 .…

A: Initial pressure: P1 = 80 kPa = 80 x 103 Pa Final pressure: P2 = 0.4 MPa = 400 x 103 Pa Initial…

Q: Hot combustion gases enter the nozzle of a turbojet engine at 260 kPa, 747C, and 80 m/s, and they…

A: The initial pressure,   The final pressure,

Q: An Otto cycle engine is operating on the following conditions: The pressure and temperature at the…

A: Initial pressure P1=150 kPa and temperature T1=300 K. Final pressure P2=5100 kPa and temperature…

Q: A Diesel cycle operates with a compression ratio of 14 and with a cut-off occurring at 5% of the…

A:

Q: A heat engine is operating on a Carnot cycle and has a thermal efficiency of 55 percent. The waste…

A:

Q: Saturated water vapor at 150C is compressed in a reversible steady-flow device to 1000 kPa while its…

A: From the saturated water vapor, the pressure and the specific volume at the temperature of 150o C…

Q: The displacement volume of an internal combustion engine is 22 liters. The processes within each…

A:

Q: As shown in the figure, a chamber with a moveable piston and containing a monatomic ideal gas in an…

A: Find the volume of the gas at state C (in L). Determine values (in kJ) for Q, W, and ΔEint for the…

Q: Consider a steady-flow Carnot cycle with water as the working fluid. The maximum and minimum…

A:

Q: Air enters a compressor steadily at the ambient conditionsof 100 kPa and 22C and leaves at 800 kPa.…

A: The change in entropy,

Q: Repeat the preceding calculations for an ideal diatomic gas expanding adiabatically from an initial…

A: Given data The initial volume of the gas is vi = 0.500 m3. The final volume of the gas is vf = 1.25…

Q: An ideal gas is compressed isothermally (constant temp) from a volume of Vi = 6.00 L to a volume of…

A: Determine the work done on the gas as follows.

Q: You design an engine that takes in 26 kJ of heat at 720 K in each cycle and rejects heat at a…

A:

Q: A stationary gas-turbine power plant operates on an ideal regenerative Brayton cycle (e = 100…

A: The power delivered by the plant at room temperature,

Q: The entropy of steam will (increase, decrease, remain the same) as it flows through an actual…

A: The actual adiabatic turbine is never reversible process.

Q: 3. Air is compressed slowly and frictionlessly in a cylinder according to the relationship…

A:

Q: A Carnot engine, whose efficiency is 40%, takes in heat from a source maintained at a temperature of…

A: Efficiency of carnot engine = 40% Temperature of source (T) = 500 K Let the temperature of the sink…

Q: If 1 kg of air at 250 kPaa pressure and 100°C were to be expanded at constant pressure in a closed…

A:

Q: A thermodynamic system is taken from an original state D to an intermediate state E by'the linear…

A:

Q: Steam enters an adiabatic turbine at 10 MPa and500°C and leaves at 10 kPa with a quality of 90…

A:

Q: A sample containing 1.00 kmol of helium (treated as an ideal gas) is put through the cycle of…

A: (a)

Q: Combustion gases enter an adiabatic gas turbine at 1540F and 120 psia and leave at 60 psia with a…

A: Using air table and isentropic relation,

Q: A 0.20 kg/s of air are compressed isothermally from P,= 100 kPa and V,= 0.15 m³/s to P,= 700 kPa.…

A:

Q: Calculate the work produced, in Btu/lbm, for the reversible steady-flow process 1-3 shown in Fig.…

A:

Q: A hot-water stream at 70C enters an adiabatic mixing chamber with a mass flow rate of 3.6 kg/s,…

A:

Q: A blower handles 2 kg/sec. of air at 30°C and consumes 40 kW power. The inlet and outlet velocities…

A:

Q: A piston–cylinder device contains 0.15 kg of air initially at 2 MPa and 350°C. The air is first…

A: Work done in an isothermal process

Q: A Carnot engine has a power output of 205 kW. The engine operates between two reservoirs at 8°C and…

A: